Merging table columns

BrettHarry asked on TeX.SX:

 
How to merge columns in a table?
 

I have this table, but wanted to format the first row. I like to match the two columns of first row, and last two columns of the same first row. Any suggestion on how to do that?

\begin{table}[!h] 
\caption{Comparison of percentages.}
\begin{tabular}{lclclclclc}
\hline
\hline 
Mode &  Var  &  Cum\\
\hline
{}       & EF   & CHF    & EF2   & CHF2\\
1   &  17.5 & 19.1   & 17.5  & 19.1\\
2   &  11.8 & 12.7   & 29.3  &  31.9\\
3   &  6.6  &  5.6         & 35.9    &  37.4\\
\hline
\end{tabular}
\end{table}
comparison table

Answer:

An example, how it can be done using \multicolum, with some improvements using booktabs:

\documentclass{article}
\usepackage{array}
\usepackage{booktabs}
\setlength{\heavyrulewidth}{1.5pt}
\setlength{\abovetopsep}{4pt}
\begin{document}
\begin{table}[!htbp]
\centering
\caption{Comparison of percentages.}
\begin{tabular}{*5c}
  \toprule
Mode &  \multicolumn{2}{c}{Var} & \multicolumn{2}{c}{Cum}\\
  \midrule
  {}   & EF   & CHF    & EF2   & CHF2\\
  1   &  17.5 & 19.1   & 17.5  & 19.1\\
  2   &  11.8 & 12.7   & 29.3  & 31.9\\
  3   &  6.6  &  5.6   & 35.9  & 37.4\\
\bottomrule
\end{tabular}
\end{table}
\end{document}
table with booktabs
Stefan Kottwitz

12. July 2011 by stefan
Categories: Uncategorized | Leave a comment

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